• Extra-low Dispersion glass; SV503 Telescope OTA is designed with ED glass; will give you the crystal clear image;SV503 80ED telescope produces an especially colour true and high contrast image; just right for more discerning observers

• Dual-speed rack and pinion focuser;The gear ratio of the dual speed 2-inch toothed focuser is 1: 10; which makes it easy to achieve accurate focus

• Top-quality Material; The appearance of the SV503 OTA is baked with high-end fine-grained paint; with exquisite appearance and delicate feel;all machined by CNC

• all optical surfaces multi-coated; The whole optical lens adopts the technology of ultra-wideband multilayer coating; 80mm aperture; fully multi-coated ED optics deliver outstanding views; day or night

• Areas of application; 80mm F7 astronomy telescope SV503 would be better begin for astronomy amateurs to do astrophotography

For those who want to enjoy outdoor activities in the garden,you deserve to have SV503 80ED telescope.

SV503 80ED telescope’s objective lens features an S FPL-51 extra-low dispersion glass ED element, which virtually eliminates chromatic aberration. This results in the great color correction for an ED doublet lens.

A thoroughly though-out design and high-quality mechanical components. This very special SV503 telescope provides astrophotographers, visual observers or nature watchers with bright, wide field views when observing starry skies or nature watching.

SV503 ED lens

SV503 ED Doublet objective is designed with one S FPL-51 ED Glass and one Lanthanide glass. This extra low-dispersion lens is brighter due to less light absorption, and the multi-layer coating technology minimizes light loss even more.

Metal hoop

The SV503 comes standard with adjustable tube rings and dovetail which allows it to attach to most telescope mounts.

In addition the dovetail plate has both 1/4 inch and 3/8 inch threaded holes to attach to heavy duty tripods.

The top of the tube rings have 1/4x20 threaded holes to attach a guide scope

1.5 arc-second resolution

The SV503 ED astronomical telescope can reach an amazing 1.5 angular seconds to let you see finer details either in astronomy or wildlife viewing